const createError = require('http-errors');
const express = require('express');
// const cors = require('cors')
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');

require('./build/auto-api')
const UseRouter = require('./router/index');

const app = express();

// 设置跨域访问
app.all('*', function (req, res, next) {
  res.header('Access-Control-Allow-Credentials', 'true'); // cookie跨域
  res.header('Access-Control-Allow-Origin', 'http://localhost:8081'); // 指定ip:端口（测试环境）
  // res.header('Access-Control-Allow-Origin', '*'); // 这么写不行
  res.header('Access-Control-Allow-Headers', 'Content-Type,XFILENAME,XFILECATEGORY,XFILESIZE,x-requested-with,Authorization');
  // res.header('Access-Control-Allow-Headers', '*');
  res.header('Access-Control-Allow-Methods', 'PUT,POST,GET,DELETE,PURGA,DEAD,LOCK,UNLOCK,PROPFIND');
  res.header('X-Powered-By', ' 3.2.1');
  res.header('Content-Type', 'application/json;charset=utf-8');
  // 跨域请求时间，单位为秒，即允许缓存该响应6000秒，在该时间范围内，不会再重复发预检请求
  res.setHeader('Access-Control-Max-Age', '6000');
  next();
});

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hjs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
// app.use(cors())

// router
UseRouter(app);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
